89 search results - page 3 / 18 » Sparse Recovery by Non-convex Optimization -- Instance Optim... |
ICASSP
2011
IEEE
12 years 9 months ago
2011
IEEE
This paper concerns the reconstruction of a temporally-varying scene from a video sequence of noisy linear projections. Assuming that each video frame is sparse or compressible in...
ICASSP
2009
IEEE
13 years 3 months ago
2009
IEEE
This paper studies compressed sensing for the recovery of non-negative sparse vectors from a smaller number of measurements than the ambient dimension of the unknown vector. We fo...
SIAMIS
2011
13 years 7 days ago
2011
Abstract. Accurate signal recovery or image reconstruction from indirect and possibly undersampled data is a topic of considerable interest; for example, the literature in the rece...
ICASSP
2011
IEEE
12 years 9 months ago
2011
IEEE
We show that the exact recovery of sparse perturbations on the coefficient matrix in overdetermined Least Squares problems is possible for a large class of perturbation structure...
SIAMIS
2011
13 years 7 days ago
2011
The convergence rate is analyzed for the sparse reconstruction by separable approximation (SpaRSA) algorithm for minimizing a sum f(x) + ψ(x), where f is smooth and ψ is convex, ...